JPH04110806A - Optical fiber, optical fiber array and production thereof - Google Patents
Optical fiber, optical fiber array and production thereofInfo
- Publication number
- JPH04110806A JPH04110806A JP2228367A JP22836790A JPH04110806A JP H04110806 A JPH04110806 A JP H04110806A JP 2228367 A JP2228367 A JP 2228367A JP 22836790 A JP22836790 A JP 22836790A JP H04110806 A JPH04110806 A JP H04110806A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- optical fibers
- posture
- maintaining
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 129
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 239000011344 liquid material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 abstract description 19
- 230000010287 polarization Effects 0.000 abstract description 15
- 229920005989 resin Polymers 0.000 abstract description 11
- 239000011347 resin Substances 0.000 abstract description 11
- 238000003848 UV Light-Curing Methods 0.000 abstract description 7
- 238000001723 curing Methods 0.000 abstract description 3
- 239000011521 glass Substances 0.000 abstract description 3
- 229910003327 LiNbO3 Inorganic materials 0.000 abstract description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- 238000003491 array Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 208000025174 PANDAS Diseases 0.000 description 1
- 208000021155 Paediatric autoimmune neuropsychiatric disorders associated with streptococcal infection Diseases 0.000 description 1
- 240000000220 Panda oleosa Species 0.000 description 1
- 235000016496 Panda oleosa Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3812—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres having polarisation-maintaining light guides
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3838—Means for centering or aligning the light guide within the ferrule using grooves for light guides
- G02B6/3839—Means for centering or aligning the light guide within the ferrule using grooves for light guides for a plurality of light guides
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
発明の背景
技術分野
この発明は、光ファイバ、光ファイバ・アレイおよびそ
れらの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to optical fibers, optical fiber arrays, and methods of manufacturing them.
従来技術とその問題点
基板上に形成された光導波路を構成要素とする光スィッ
チなどの光デバイスにおいては、光デバイスに光を入射
または光デバイスから光を出射させるために光ファイバ
・アレイが必要である。光ファイバ・アレイには、光フ
ァイバが一直線上に並んでいること、および光ファイバ
のコア間隔が高精度に制御されていることか必要である
。偏波保持(偏波面保存)光ファイバを用いた光ファイ
バ・アレイては、偏波保持方向か揃っていることか必要
とされる。Conventional technology and its problems Optical devices such as optical switches that have optical waveguides formed on a substrate as a component require an optical fiber array to input light into or output light from the optical device. It is. Optical fiber arrays require that the optical fibers are aligned in a straight line and that the core spacing of the optical fibers is precisely controlled. Optical fiber arrays using polarization-maintaining optical fibers require that the polarization-maintaining directions be aligned.
従来の偏波保持光ファイバを用いて構成される光ファイ
バ・アレイは、光ファイバを固定するための複数のV溝
か形成されたブロックを用意し。An optical fiber array constructed using conventional polarization-maintaining optical fibers has a block formed with a plurality of V-grooves for fixing the optical fibers.
これらの複数のV溝に光ファイバを配列した後偏波保持
方向を合わせるために固定する前に光ファイバを回転し
て調整していた。After the optical fibers are arranged in these plurality of V-grooves, the optical fibers are rotated and adjusted before being fixed to match the polarization maintaining direction.
しかしながら、調整のために1つの光ファイバを回転さ
せるとその隣の光ファイバも回転してしまうため、光フ
ァイバ・アレイにおける偏波保持方向の調整は非常に困
難なものである。However, when one optical fiber is rotated for adjustment, the adjacent optical fiber also rotates, so it is very difficult to adjust the polarization maintaining direction in an optical fiber array.
発明の概要
発明の目的
この発明は光ファイバの保持を容易にすることを目的と
する。SUMMARY OF THE INVENTION OBJECTS OF THE INVENTION The purpose of the invention is to facilitate the retention of optical fibers.
この発明はまた。比較的簡単に光ファイバ・アレイを製
造することができるようにすることを目的とする。This invention also. It is an object of the present invention to make it possible to manufacture an optical fiber array relatively easily.
発明の構成1作用および効果
この発明による光ファイバは、外周面に円形以外の断面
をもつ姿勢保持用の凸条か長手方向にそって形成されて
いることを特徴とする。Arrangement 1 of the Invention Functions and Effects The optical fiber according to the present invention is characterized in that an attitude-maintaining protrusion having a cross section other than circular is formed along the longitudinal direction on the outer peripheral surface.
上記姿勢保持用凸条の断面か角部を有していることが好
ましい。It is preferable that the cross section of the posture-maintaining protrusion has a corner.
この発明による光ファイバの製造方法は、姿勢保持用凸
条を形成するための凹溝をもつ型を用意し、上記型の凹
溝と光ファイバとの間にエネルギ照射により硬化する液
状材料を注入し、エネルギを照射して上記液状材料を硬
化させることにより上記光ファイバに姿勢保持用凸条を
一体的に形成し、その後、上記光ファイバを型から分離
することを特徴とする。The method for manufacturing an optical fiber according to the present invention includes preparing a mold having grooves for forming posture-maintaining protrusions, and injecting a liquid material that hardens by energy irradiation between the grooves of the mold and the optical fiber. The present invention is characterized in that the attitude maintaining protrusion is integrally formed on the optical fiber by irradiating energy to harden the liquid material, and then the optical fiber is separated from the mold.
姿勢保持用の凸条が形成される光ファイバの外周面はク
ラッドの外周面でもよいし、クラッドの外側の被覆の外
周面でもよい。The outer circumferential surface of the optical fiber on which the posture-maintaining protrusions are formed may be the outer circumferential surface of the cladding, or may be the outer circumferential surface of the coating outside the cladding.
エネルギ照射により硬化する液状材料には、光硬化性ま
たは熱硬化性の樹脂、たとえば紫外線(UV)硬化樹脂
かある。また無機材料としては熱硬化性膜形成用塗布液
を挙げることができる。Liquid materials that are cured by energy radiation include photocurable or thermosetting resins, such as ultraviolet (UV) cured resins. Examples of inorganic materials include coating liquids for forming thermosetting films.
液状とはゲル状も含む。エネルギ照射により硬化する他
の液状材料には、たとえば熱硬化性材料を挙げることか
できる。熱硬化性無機材料の例としては、熱硬化性膜形
成用塗布液を挙げることができる。多くの種類の塗布液
があるか、焼成後膜形成物としてZrO2,TiO2,
AN203. SiO2等を含むものか好適である。Liquid state also includes gel state. Other liquid materials that can be cured by energy irradiation include, for example, thermosetting materials. Examples of thermosetting inorganic materials include coating liquids for forming thermosetting films. There are many types of coating liquids, and ZrO2, TiO2,
AN203. A material containing SiO2 or the like is preferable.
この発明によると、光ファイバの外周面に姿勢保持用の
凸条か形成されているから1回転しやすい円形断面をも
つ光ファイバの姿勢をこの凸条によって常に一定に保持
することかできる。偏波保持光ファイバにこの発明を適
用すると、偏波保持方向と上記凸条とを常に一定の関係
になるように作製することにより、上記凸条によって偏
波保持方向が明確に分るとともに、複数本の偏波保持光
ファイバの偏波保持方向を容易に揃えることが可能とな
る。According to this invention, since the protrusions for maintaining the posture are formed on the outer circumferential surface of the optical fiber, the posture of the optical fiber having a circular cross section that can easily rotate once can be always maintained constant by the protrusions. When the present invention is applied to a polarization-maintaining optical fiber, the polarization-maintaining direction is made so that the relationship between the polarization-maintaining direction and the above-mentioned ridges is always constant, so that the polarization-maintaining direction can be clearly seen by the above-mentioned ridges, and It becomes possible to easily align the polarization maintaining directions of a plurality of polarization maintaining optical fibers.
この発明による光ファイバ・アレイは、外周面に円形以
外の断面をもつ姿勢保持用の凸条か長手方向にそって形
成されている複数の光ファイバか、上記凸条をもつ光フ
ァイバの保持に適した凹部をもつブロックの上記凹部内
に一列状に配列されかつ固定されていることを特徴とす
る。The optical fiber array according to the present invention has a plurality of optical fibers formed along the longitudinal direction of a protruding strip for attitude maintenance having a cross section other than a circular shape on the outer circumferential surface, or a plurality of optical fibers having the protruding strip as described above. It is characterized in that they are arranged in a line and fixed in the recesses of a block with suitable recesses.
複数の光ファイバか一つの凹部内に重ねて収められるか
、または上記ブロックに複数の四部か一列状に配列され
て形成され、各四部に一つずつ光ファイバが収められる
。A plurality of optical fibers may be stacked in one recess, or a plurality of quadrangles may be arranged in a row in the block, with one optical fiber accommodated in each quadrant.
この発明による光ファイバ・アレイの製造方法は、外周
面に姿勢保持用凸条が長手方向にそって設けられた光フ
ァイバを複数個作成し、ブロックに上記凸条をもつ光フ
ァイバの保持に適した四部を形成し、上記ブロックの凹
部内に上記凸条をもつ光ファイバを一列状に配列しかつ
固定することを特徴とする。The method for manufacturing an optical fiber array according to the present invention involves creating a plurality of optical fibers each having posture-maintaining protrusions along the longitudinal direction on the outer circumferential surface, and is suitable for holding optical fibers having the above-mentioned protrusions on a block. The optical fibers having the protrusions are arranged in a line and fixed in the concave portion of the block.
外周面に姿勢保持用凸条が長手方向にそって設けられた
光ファイバは、姿勢保持用凸条を形成するための凹溝を
もつ型の上記凹溝とこの凹溝に対向して保持された光フ
ァイバとの間にエネルギ照射により硬化する液状材料を
注入し、エネルギを照射して上記液状材料を硬化させ、
その後、型から光ファイバを分離することにより作製す
る。An optical fiber having an attitude-maintaining protrusion provided along its longitudinal direction on its outer circumferential surface is held opposite to the above-mentioned groove having a groove for forming the attitude-maintaining protrusion. A liquid material that is hardened by energy irradiation is injected between the optical fiber and the optical fiber, and the liquid material is hardened by irradiating energy.
Thereafter, the optical fiber is manufactured by separating it from the mold.
この発明によると、光ファイバ・アレイを構成する複数
本の光ファイバのそれぞれの外周面に姿勢保持用の凸条
が長手方向にそって設けられているから、この凸条を利
用して複数本の光ファイノくの姿勢を一定に容易に揃え
ることができる。とくに偏波保持光ファイバを用いた光
ファイバ・アレイにおいては、各偏波保持光ファイノ(
の偏波保持方向と上記凸条とが一定の関係を保つように
あらかじめ作成しておけばブロックの凹部内に光ファイ
バを配列するだけて偏波保持方向の揃った光ファイバ・
アレイを得ることができる。従来のように、ブロックの
凹部内に光ファイバを配列した後に光ファイバを回転さ
せて偏波保持方向を調整することが不要となるので、比
較的容易に偏波保持光ファイバを用いた光ファイバ・ア
レイを製造することができ、コスト・ダウンを図ること
ができるようになる。According to this invention, since the protrusions for posture maintenance are provided along the longitudinal direction on the outer circumferential surface of each of the plurality of optical fibers constituting the optical fiber array, the protrusions are used to connect the plurality of optical fibers. The posture of the optical fiber can be easily kept constant. In particular, in an optical fiber array using polarization-maintaining optical fibers, each polarization-maintaining optical fiber (
If the polarization-maintaining direction of the block and the above-mentioned protrusions are made in advance so that a certain relationship is maintained, optical fibers with uniform polarization-maintaining directions can be created by simply arranging the optical fibers in the recesses of the block.
array can be obtained. It is not necessary to adjust the polarization maintaining direction by rotating the optical fibers after arranging the optical fibers in the recesses of the block as in the conventional method, so it is relatively easy to create optical fibers using polarization maintaining optical fibers.・It becomes possible to manufacture arrays and reduce costs.
実施例の説明
第1図(A)〜(E)は、この発明の実施例を示すもの
で、偏波保持光ファイバより構成される光ファイバ・ア
レイの製造工程の一例である。この実施例では偏波保持
光ファイバとしてPANDAファイバが示されている。DESCRIPTION OF THE EMBODIMENTS FIGS. 1A to 1E show an embodiment of the present invention, which is an example of the manufacturing process of an optical fiber array composed of polarization-maintaining optical fibers. In this embodiment, a PANDA fiber is shown as the polarization maintaining optical fiber.
Si基板4を用意し、このSi基板4に形成しようとす
る姿勢保持用凸条の形状に対応した凹溝4aをダイシン
グにより形成する(第1図(A))。A Si substrate 4 is prepared, and grooves 4a corresponding to the shape of the attitude-holding protrusions to be formed on the Si substrate 4 are formed by dicing (FIG. 1(A)).
この実施例においては凹溝48の断面は方形であり、そ
の幅は光ファイバ1の直径と等しく設定されている。In this embodiment, the groove 48 has a rectangular cross section, and its width is set equal to the diameter of the optical fiber 1.
Si基板4の凹溝4a内に姿勢保持用凸条2の材料であ
るUV(紫外線)硬化樹脂を注入するとともに凹溝4a
内に光ファイバ1を入れ、光ファイバ1と凹溝4aとの
間の空間をUV硬化樹脂で埋める。光ファイバの上をガ
ラス基板5で押さえながら、ガラス基板5の上方から紫
外線を照射しUV硬化樹脂を硬化させる(第1図(B)
)。A UV (ultraviolet) curing resin, which is the material of the posture holding protrusion 2, is injected into the groove 4a of the Si substrate 4, and the groove 4a is
The optical fiber 1 is inserted into the groove 4a, and the space between the optical fiber 1 and the groove 4a is filled with UV curing resin. While holding the top of the optical fiber with the glass substrate 5, UV rays are irradiated from above the glass substrate 5 to harden the UV curing resin (Fig. 1 (B)
).
UV硬化樹脂が硬化したのち、光ファイバ1をS1基板
4の凹溝48から取出す(第1図(C))。After the UV curing resin is cured, the optical fiber 1 is taken out from the groove 48 of the S1 substrate 4 (FIG. 1(C)).
これにより、外周面上に姿勢保持用の凸条2が一体的に
形成された光ファイバが得られる。姿勢保持用凸条2が
形成される光ファイバの外周面は、クラッド層であって
もその周囲の被覆層であってもよい。As a result, an optical fiber is obtained in which the protruding strip 2 for posture maintenance is integrally formed on the outer circumferential surface. The outer circumferential surface of the optical fiber on which the posture-maintaining protrusions 2 are formed may be a cladding layer or a surrounding coating layer.
第1図(B)および第1図(C)の工程を繰返すことに
より、姿勢保持用凸条2が形成された光ファイバ1を多
数得る。このとき光ファイバ1の偏波保持方向と姿勢保
持用凸条2との位置関係がすべての光ファイバにおいて
同じになるように揃えておく。姿勢保持用凸条2をもつ
光ファイバは1本ずつ作製されるので、偏波保持方向を
揃えるのは比較的容易である。By repeating the steps in FIG. 1(B) and FIG. 1(C), a large number of optical fibers 1 having posture-maintaining protrusions 2 formed thereon are obtained. At this time, all the optical fibers are aligned so that the polarization maintaining direction of the optical fiber 1 and the attitude maintaining protrusion 2 have the same positional relationship. Since the optical fibers having the attitude-maintaining protrusions 2 are manufactured one by one, it is relatively easy to align the polarization-maintaining directions.
次にL i NbO3基板6および7を用意し、一方の
L L N b 03基板7に複数の光ファイバ1を縦
方向に配列できるように光ファイバ1の直径と等しい幅
をもつ深い保持溝7aをダイシングにより形成する(第
1図(D))。Next, L i NbO3 substrates 6 and 7 are prepared, and deep holding grooves 7 a having a width equal to the diameter of the optical fibers 1 are formed in one L L Nb 03 substrate 7 so that a plurality of optical fibers 1 can be arranged vertically. is formed by dicing (FIG. 1(D)).
L i N b 03基板7の保持溝7a内に、偏波保
持方向が同じになるように所要数本の光ファイバ1を入
れる。上述のように光ファイバ1の姿勢保持用凸条2と
偏波保持方向とは一定の関係になっているので、凸条2
を保持溝7aの内壁にそわせることにより、複数本の光
ファイバの偏波保持方向は一定に揃う。このとき、保持
347 a内にUV硬化樹脂を注入しておく。また、
LiNbO3基板6をかぶせて光ファイバ1を押えつけ
る。モしてUV硬化樹脂を硬化させることにより、偏波
保持方向か揃った偏波保持光ファイバにより構成される
光ファイバ・アレイを得る。A required number of optical fibers 1 are inserted into the holding groove 7a of the L i N b 03 substrate 7 so that the polarization holding direction is the same. As mentioned above, since there is a constant relationship between the attitude-maintaining protrusion 2 of the optical fiber 1 and the polarization maintaining direction, the protrusion 2
By aligning the optical fibers with the inner wall of the holding groove 7a, the polarization maintaining directions of the plurality of optical fibers are uniformly aligned. At this time, UV curing resin is injected into the holding member 347a. Also,
Cover the LiNbO3 substrate 6 and press down the optical fiber 1. By curing the UV curing resin, an optical fiber array composed of polarization-maintaining optical fibers aligned in the polarization-maintaining direction is obtained.
第2図から第4図は他の実施例を示している。2 to 4 show other embodiments.
第2図は光ファイバの斜視図、第3図は光ファイバの製
造過程を示す正面図、第4図は光ファイバ・アレイの製
造過程を示す正面図である。FIG. 2 is a perspective view of an optical fiber, FIG. 3 is a front view showing the manufacturing process of the optical fiber, and FIG. 4 is a front view showing the manufacturing process of the optical fiber array.
この実施例に示す光ファイバ1は、その外周面上に形成
された姿勢保持用凸条2の断面形状がほぼ三角形である
。この光ファイバは第3図に示すように、三角形の凹溝
4bが形成されたSi基板4を用いて、第1図(A)〜
(C)と同じ工程により作製することかできる。In the optical fiber 1 shown in this embodiment, the posture-maintaining protrusion 2 formed on the outer peripheral surface of the optical fiber 1 has a substantially triangular cross-sectional shape. As shown in FIG. 3, this optical fiber is manufactured by using a Si substrate 4 in which a triangular groove 4b is formed.
It can be produced by the same process as (C).
同し工程を繰返すことにより、第2図に示すような凸条
2か一体的に形成された多数本の光ファイバ1を得る。By repeating the same process, a large number of optical fibers 1 having ridges 2 integrally formed as shown in FIG. 2 are obtained.
光ファイバ1の偏波保持方向と凸条2との関係をすべて
の光ファイバにおいて同じに揃えておくのはいうまでも
ない。凸条2は適当な長さに設ければよい。It goes without saying that the relationship between the polarization maintaining direction of the optical fiber 1 and the protrusion 2 is the same for all optical fibers. The protrusions 2 may be provided with an appropriate length.
次に、第4図に示すように一定間隔て等しいV溝88が
形成されたSi基板8を用意する。これらのV溝りa内
に光ファイバ1の凸条2か収まるように光ファイバ1を
配列して、光ファイバ1とSi基板8とを接着剤等で固
定すれば、偏波保持光ファイバ・アレイができあかる。Next, as shown in FIG. 4, a Si substrate 8 is prepared in which V grooves 88 are formed at regular intervals. By arranging the optical fibers 1 so that the protrusions 2 of the optical fibers 1 fit within these V-grooves a, and fixing the optical fibers 1 and the Si substrate 8 with adhesive or the like, polarization-maintaining optical fibers and The array is completed.
第1図(A)〜(E)は、この発明による光ファイバ・
アレイの製造工程を示すものである。
第2図は光ファイバの他の例を示す斜視図、第3図は第
2図に示す光ファイバの製造過程を示す正面図、第4図
は光ファイバ・アレイの製造過程を示す正面図である。
1・・・光ファイバ。
2・・・姿勢保持用凸条。
4.8・・・Si基板。
4a・・・凹溝。
7・・・LiNb0i基板。
7a・・・保持溝。
8a・・・V溝。
以 上FIGS. 1(A) to 1(E) show optical fibers according to the present invention.
It shows the manufacturing process of the array. Figure 2 is a perspective view showing another example of the optical fiber, Figure 3 is a front view showing the manufacturing process of the optical fiber shown in Figure 2, and Figure 4 is a front view showing the manufacturing process of the optical fiber array. be. 1...Optical fiber. 2... Protrusions for maintaining posture. 4.8...Si substrate. 4a...concave groove. 7...LiNb0i substrate. 7a...Retaining groove. 8a...V groove. that's all
Claims (8)
が長手方向にそって形成されている光ファイバ。(1) An optical fiber in which a posture-maintaining protrusion with a cross section other than circular is formed along the longitudinal direction on the outer peripheral surface.
請求項(1)に記載の光ファイバ。(2) the cross section of the posture maintaining protrusion has a corner;
The optical fiber according to claim (1).
用意し、 上記型の凹溝と光ファイバとの間にエネルギ照射により
硬化する液状材料を注入し、 エネルギを照射して上記液状材料を硬化させることによ
り上記光ファイバに姿勢保持用凸条を一体的に形成し、 その後、上記光ファイバを型から分離する、光ファイバ
の製造方法。(3) Prepare a mold with grooves for forming posture-maintaining protrusions, inject a liquid material that hardens by energy irradiation between the grooves of the mold and the optical fiber, and irradiate it with energy. A method of manufacturing an optical fiber, comprising integrally forming a posture-maintaining protrusion on the optical fiber by curing the liquid material, and then separating the optical fiber from a mold.
が長手方向にそって形成されている複数の光ファイバが
、上記凸条をもつ光ファイバの保持に適した凹部をもつ
ブロックの上記凹部内に一列状に配列されかつ固定され
ている光ファイバ・アレイ。(4) A block in which a plurality of optical fibers each having protrusions for maintaining posture with a cross section other than circular are formed along the longitudinal direction on the outer peripheral surface, and a concave portion suitable for holding the optical fibers having the protrusions. an optical fiber array arranged in a line and fixed within the recess of the.
る請求項(4)に記載の光ファイバ・アレイ。(5) The optical fiber array according to claim (4), wherein a plurality of optical fibers are housed in one recess.
形成され、各凹部に一つずつ光ファイバが収められてい
る請求項(4)に記載の光ファイバ・アレイ。(6) The optical fiber array according to claim 4, wherein a plurality of recesses are arranged in a line in the block, and each recess accommodates one optical fiber.
られた光ファイバを複数個作成し、 ブロックに上記凸条をもつ光ファイバの保持に適した凹
部を形成し、 上記ブロックの凹部内に上記凸条をもつ光ファイバを一
列状に配列しかつ固定する、 光ファイバ・アレイの製造方法。(7) Create a plurality of optical fibers each having posture-maintaining protrusions along the longitudinal direction on the outer peripheral surface, form a recess suitable for holding the optical fiber having the protrusions on the block, and A method for manufacturing an optical fiber array, comprising arranging and fixing optical fibers having the above-mentioned protrusions in a line in a recess.
上記凹溝とこの凹溝に対向して保持された光ファイバと
の間にエネルギ照射により硬化する液状材料を注入し、 エネルギを照射して上記液状材料を硬化させ、その後、
型から光ファイバを分離することにより、姿勢保持用凸
条が一体的に形成された光ファイバを作製する請求項(
7)に記載の光ファイバ・アレイの製造方法。(8) Injecting a liquid material that hardens by energy irradiation between the groove of the mold having a groove for forming a posture-maintaining protrusion and the optical fiber held opposite to the groove; Apply energy to harden the liquid material, and then
Claim (1) wherein an optical fiber having an integrally formed posture-maintaining protrusion is produced by separating the optical fiber from a mold.
7) The method for manufacturing an optical fiber array according to item 7).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2228367A JPH04110806A (en) | 1990-08-31 | 1990-08-31 | Optical fiber, optical fiber array and production thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2228367A JPH04110806A (en) | 1990-08-31 | 1990-08-31 | Optical fiber, optical fiber array and production thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04110806A true JPH04110806A (en) | 1992-04-13 |
Family
ID=16875353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2228367A Pending JPH04110806A (en) | 1990-08-31 | 1990-08-31 | Optical fiber, optical fiber array and production thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04110806A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1219991A1 (en) * | 2000-12-25 | 2002-07-03 | Ngk Insulators, Ltd. | Polarization-maintaining fiber ribbon termination and manufacturing method therefor |
EP1219992A1 (en) * | 2000-12-25 | 2002-07-03 | Ngk Insulators, Ltd. | Optical fiber ribbon termination and manufacturing method therefor |
CN103145349A (en) * | 2013-03-29 | 2013-06-12 | 武汉光迅科技股份有限公司 | Manufacture method of low-stress polarization maintaining optical fibre applied to coupling |
EP4339669A1 (en) * | 2022-09-13 | 2024-03-20 | Optek Systems, Inc. | Method for orienting and terminating polarization-maintaining (pm) optical fiber and forming a pm optical fiber assembly |
-
1990
- 1990-08-31 JP JP2228367A patent/JPH04110806A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1219991A1 (en) * | 2000-12-25 | 2002-07-03 | Ngk Insulators, Ltd. | Polarization-maintaining fiber ribbon termination and manufacturing method therefor |
EP1219992A1 (en) * | 2000-12-25 | 2002-07-03 | Ngk Insulators, Ltd. | Optical fiber ribbon termination and manufacturing method therefor |
US7445832B2 (en) | 2000-12-25 | 2008-11-04 | Ngk Insulators, Ltd. | Ribboned polarization-maintaining fiber and manufacturing method therefor, and polarization-maintaining optical fiber array using the same |
CN103145349A (en) * | 2013-03-29 | 2013-06-12 | 武汉光迅科技股份有限公司 | Manufacture method of low-stress polarization maintaining optical fibre applied to coupling |
CN103145349B (en) * | 2013-03-29 | 2014-12-31 | 武汉光迅科技股份有限公司 | Manufacture method of low-stress polarization maintaining optical fibre applied to coupling |
EP4339669A1 (en) * | 2022-09-13 | 2024-03-20 | Optek Systems, Inc. | Method for orienting and terminating polarization-maintaining (pm) optical fiber and forming a pm optical fiber assembly |
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